Microsoft® Lync Server 2010 Unleashed

Bandwidth Estimates

Table 28.2 defines the various bandwidth estimates for each protocol. Usually the typical bandwidth usage values can be used for planning purposes. Forward error correction (FEC) is enabled when Lync clients detect poor network connectivity and attempts to provide a more resilient voice connection to combat network jitter or latency.

Table 28.2 Bandwidth Codec Estimates

When a bandwidth policy limit is exceeded by a user, Call Admission Control kicks in with an attempt to reroute the call. First, the call attempts to be directed over the Internet. Instead of using the WAN link, the call traverses the Internet and Edge infrastructure. ...